JP2020010434A - Non-contact power feed type electric appliance - Google Patents

Abstract

To enable various controls on an output of an electric appliance incorporating a power reception coil by rotating the electric appliance on a power feed base incorporating a power feed coil.SOLUTION: A non-contact power feed type electric appliance includes a power feed base 27 incorporating a power feed coil 13, and an electric appliance body 30 incorporating a power reception coil 14 that receives power in a non-contact manner from the power feed coil 13. The electric appliance body 30 is rotatably provided with the power feed coil 13 and the power reception coil 14 facing each other. The electric appliance body 30 comprises: a load 18 that is driven with the power received by the power reception coil 14; a power supply circuit 19 that supplies the received power to the load 18; a gyro sensor 21 that is provided at a substantial rotation center position of the electric appliance body 30 and that outputs a rotation angle and a rotation direction of the electric appliance body 30; and a microcomputer 20 that controls power supply of the power supply circuit 19 on the basis of the outputs of the gyro sensor 21.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a non-contact power supply type electric appliance that enables various controls without a button, a touch panel, and the like by rotating an electric appliance including a power receiving coil such as a lighting device, a heating device, and a speaker. .

Conventionally, a non-contact power supply type electric appliance is well known (Patent Document 1 and Patent Document 2).
In the desk lamp described in Patent Document 1, the lamp and the secondary coil are suspended from the upper end of the arm of the desk lamp, and the brightness of the lamp is adjusted by changing the position of the primary coil attached in the middle of the arm. are doing.

  The non-contact power supply type electric appliance described in Patent Literature 2 rotatably supports the power reception coil such that the power supply coil installed on the table or shelf and the electric power reception coil of the electric appliance installed on the table or shelf are substantially in an equilibrium state. By turning around the axis in the member, it is intended to supply power efficiently.

JP-T-2006-523363. JP-A-2012-29510.

The invention described in Patent Literature 1 changes the brightness by changing the distance between the primary coil and the secondary coil, so that the configuration for changing the distance is complicated.
In addition, the invention described in Patent Document 2 makes it difficult not only to confirm whether the power feeding coil and the power receiving coil are in a substantially balanced state, but also to adjust the brightness of the lighting fixture. is there.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus in which the output of an electric appliance can be variously controlled without a button, a touch panel, or the like by rotating an electric appliance with a built-in power receiving coil in a power supply stand shape with a built-in power supply coil. It is assumed that.

The non-contact power supply type electric appliance of the present invention,
In a non-contact power supply type electric appliance including a power supply stand 27 having a power supply coil 13 built therein and an electric appliance body 30 having a power reception coil 14 for receiving contactless power from the power supply coil 13,
The electric appliance body 30 is rotatably provided in a state where the power supply coil 13 and the electric power reception coil 14 face each other, and the electric appliance body 30 includes a load 18 driven by the electric power received by the electric power reception coil 14, A power supply circuit 19 for supplying received power to the load 18, a gyro sensor 21 provided at a substantially rotation center position of the electric appliance body 30, and outputting a rotation angle and a rotation direction of the electric appliance body 30. A microcomputer 20 controls the power supply of the power supply circuit 19 based on the output of the gyro sensor 21.

  The electric appliance body 30 is formed of a heating container, and a heating wire 18a as the load 18 is built in the heating container.

  A temperature sensor 22 provided in the heating vessel, a microcomputer 20 for comparing the output of the temperature sensor 22 with the output of the gyro sensor 21 and controlling the power supply of the power supply circuit 19 with the comparison output. It is characterized by being.

  The electric appliance body 30 is composed of a lighting fixture, and a light emitting element 18b as the load 18 is built in the lighting fixture.

  In order to change the hue of the lighting equipment, the light emitting element 18b includes a red light emitting element 18R, a green light emitting element 18G, and a blue light emitting element 18B connected in parallel, and a red power supply circuit 19R connected in series to these. An electric circuit 36 for wireless communication in the lighting fixture, comprising a power supply circuit 19G for green and a power supply circuit 19B for blue, and instructing selection of a combination of the red light emitting element 18R, the green light emitting element 18G and the blue light emitting element 18B. And a gyro sensor 21 for setting the duty ratio of the red power supply circuit 19R, the green power supply circuit 19G, and the blue power supply circuit 19B. .

According to the first aspect of the present invention,
In a non-contact power supply-type electric appliance including a power supply stand having a built-in power supply coil and an electric appliance main body having a built-in power reception coil for receiving contactless power from the power supply coil,
The electric appliance main body is rotatably provided in a state where the power supply coil and the power receiving coil face each other, and supplies the electric appliance main body with a load driven by the electric power received by the electric power receiving coil, and supplies the electric power to the load. A power supply circuit, a gyro sensor that is provided at a substantially rotation center position of the electric appliance body, and outputs a rotation angle and a rotation direction of the electric appliance body. Since it has a microcomputer that controls the power supply, it is possible to control the heating temperature, brightness, etc. without a touch panel etc. just by turning the electric appliance body with the power supply coil and the power reception coil facing each other. I have to. In addition, simply installing a gyro sensor enables reliable control with a simple configuration.

According to the invention described in claim 2,
The electric appliance body is formed of a heating container, and a heating wire as the load is built in the heating container, so that an excellent appearance such as a mug or an electric pot can be provided.

According to the invention described in claim 3,
A temperature sensor provided in the heating vessel, a microcomputer that compares the output of the temperature sensor with the output of the gyro sensor and controls the power supply of the power supply circuit with the comparison output; Can be reliably set to the set temperature.

According to the invention described in claim 4,
The electric appliance main body is made of a lighting fixture, and a light emitting element made up of an LED as the load is built in the lighting fixture. Therefore, the brightness can be easily and reliably controlled by controlling the number of lighting and extinguishing LEDs.

According to the invention described in claim 5,
The light-emitting element includes a red light-emitting element, a green light-emitting element, and a blue light-emitting element connected in parallel with each other, and a red power supply circuit, a green power supply circuit, and a blue power supply circuit connected in series to the red light-emitting element, the green light-emitting element, and the blue power supply circuit. A wireless communication module wirelessly connected to a wireless communication electric circuit in the lighting apparatus for instructing selection of a combination of the red light emitting element, the green light emitting element, and the blue light emitting element; the red power supply circuit and the green power supply Since the circuit and the gyro sensor for setting the duty ratio of the blue power supply circuit are provided, the combination of the hue and the brightness can be controlled, and the utility value is particularly high as a store decoration.

1 is a block diagram illustrating an electric circuit of a non-contact power supply type electric appliance according to a first embodiment of the present invention. FIG. 3 is a plan view of the non-contact power supply type electric appliance according to the present invention in an angle adjustment state. FIG. 3 is a cross-sectional view when the non-contact power supply type electric appliance according to the present invention is a heating appliance. It is a block diagram which shows Example 2 of the electric circuit when the non-contact electric power supply type electric appliance by this invention is a lighting fixture. It is a waveform diagram which shows adjustment of brightness when the non-contact electric supply type electric appliance by this invention is a lighting fixture. It is a block diagram showing Example 3 of the electric circuit when the non-contact power supply type electric appliance according to the present invention is a lighting fixture.

  The non-contact power supply type electric appliance of the present invention includes a power supply stand 27 having a power supply coil 13 therein, and an electric appliance body 30 having a power reception coil 14 which receives power from the power supply coil 13 in a non-contact manner. The electric appliance body 30 is provided rotatably in a state where the power supply coil 13 and the electric power reception coil 14 face each other, and the electric appliance body 30 includes a load 18 driven by the electric power received by the electric power reception coil 14. A power supply circuit 19 for supplying received electric power to the load 18; and a gyro sensor 21 provided at a substantially pivotal center position of the electric appliance main body 30 and outputting a rotational angle and a rotational direction of the electric appliance main body 30. And a microcomputer 20 for controlling the power supply of the power supply circuit 19 based on the output of the gyro sensor 21.

  The electric appliance main body 30 is specifically composed of a heating container, in which a heating wire 18a as the load 18 is incorporated.

  A microcomputer 20 that provides a temperature sensor 22 in the heating vessel, compares the output of the temperature sensor 22 with the output of the gyro sensor 21 and controls the power supply of the power supply circuit 19 with the comparison output. Is provided.

  The electric appliance body 30 is composed of a lighting fixture, and a light emitting element 18b of an LED is built in the lighting fixture as the load 18.

  In order to change not only the brightness but also the hue, the light emitting element 18b includes a red light emitting element 18R, a green light emitting element 18G, and a blue light emitting element 18B connected in parallel, and a red power supply circuit connected in series to these. 19R, a green power supply circuit 19G, and a blue power supply circuit 19B. The wireless communication electric device in the lighting device instructs selection of a combination of the red light emitting element 18R, the green light emitting element 18G, and the blue light emitting element 18B. The wireless communication module 25 wirelessly connected to the circuit 36, and the gyro sensor 21 for setting the duty ratio of the red power supply circuit 19R, the green power supply circuit 19G, and the blue power supply circuit 19B. .

Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
The AC power supply 10 is rectified by a rectifier circuit 11, converted into a high-frequency signal by an inverter circuit 12, and applied to a power supply coil 13. These circuits are built in a power supply stand 27 described later.

Power is transmitted to the power receiving coil 14 magnetically coupled to the power feeding coil 13 by electromagnetic induction and the magnetic field resonance action of the resonance capacitor 15. The high-frequency power received by the power receiving coil 14 is rectified by a rectifier circuit 16, smoothed by a smoothing capacitor 17, and transferred to a load 18 (first embodiment) via a power supply circuit 19 including a switch circuit such as a MOS-FET. Is connected to a heating wire 18a) of a heating device such as a mug.
When the load 18 is a heating wire 18a, a microcomputer 20 for controlling opening and closing of the power supply circuit 19 is incorporated. A temperature sensor 22 for measuring the temperature of the contents of the electric appliance body 30 and a gyro sensor 21 for detecting the angular velocity of the electric appliance body 30 are connected to the microcomputer 20, and are wirelessly coupled to the wireless communication module 25. You. The microcomputer 20 is connected to a nonvolatile memory 23 for storing the current position of the electric appliance body 30.
These circuits are incorporated in a heating device or a lighting device as an electric device main body 30 described later. In addition, it can be used for changing the volume and sound quality with a speaker or the like.

In FIG. 3 showing a specific configuration of the power supply stand 27 on which the electric appliance main body 30 is placed to supply electric power, the power supply stand 27 has a thin thickness of about 10 to 15 mm and a diameter of about 100 to 200 mm. The rectifier circuit 11, the inverter circuit 12, and the power supply coil 13 are built in the electric stand 27, and are connected to the AC power supply 10 by the AC plug.
In this example, the power supply table 27 is placed on the table 26, but may be embedded in the table 26, a wall, or the like.

The outer shell of the electric appliance body 30 includes a rubber material 33 constituting a bottom plate, an exterior material 31 such as plastic, wood, porcelain, and ceramics, a heating wire 18a disposed inside the exterior material 31, and a heating wire 18a. 18a and an interior material 32 such as a copper material having excellent heat conductivity. The power receiving coil 14 is disposed between the rubber material 33 and the interior material 32, a wiring board 34 is disposed thereon, and the temperature sensor 22 is provided in close contact with the interior material 32. I have.
On the wiring board 34, the microcomputer 20 is mounted, and an electric circuit for non-contact power supply control, an electric circuit for constant temperature control of the temperature sensor 22, an electric circuit for control of the gyro sensor 21, and the wireless communication module An electric circuit 36 for wireless communication described later is mounted on the wiring board 34, and the gyro sensor 21 is mounted on the wiring board 34 so as to be located substantially at the center of the electric appliance body 30. These circuits, the gyro sensor 21, the temperature sensor 22, the power supply circuit 19, and the wireless communication module 25 are controlled by the microcomputer 20.

In such a configuration, when the heating device as the electric appliance main body 30 is placed at the center position of the power supply base 27, the heating appliance as the electric appliance main body 30 is moved to the power supply base by the data stored in the nonvolatile memory 23 of the microcomputer 20. It is reset to the state immediately before it was removed from 27.
It is assumed that the temperature of the contents 35 of the heating appliance as the electric appliance main body 30 at the time of reset is output as 50 ° C. by the sensor output of the temperature sensor 22. When the temperature is to be raised above this temperature, FIG. As shown in the drawing, the user puts his hand on the heating device serving as the electric device main body 30 and rotates rightward to the position of R1. Then, the gyro sensor 21 detects the angular velocity of the heating appliance as the electric appliance main body 30, and outputs a signal to the microcomputer 20 for increasing the temperature of the contents 35 by 5 ° C. per 15 degrees of the central angle, for example. Closes the power supply circuit 19 and supplies power to the heating wire 18a to heat it. When the temperature rises by 5 ° C. and the signal of 55 ° C. is sent from the temperature sensor 22 to the microcomputer 20, the microcomputer 20 opens the power supply circuit 19.

Further, when the heating appliance as the electric appliance main body 30 is rotated clockwise with R2, R3,..., For example, a signal is output to the microcomputer 20 to increase the temperature of the contents 35 by 5 ° C. per 15 ° central angle. Then, the power supply circuit 19 is closed and power is supplied to the heating wire 18a to heat it. When the detected value of the temperature sensor 22 matches the set value of the gyro sensor 21, the power supply circuit 19 is opened.
Since it takes time to raise the temperature of the contents 35, it is desirable to compare the set value of the gyro sensor 21 and the detection value of the temperature sensor 22 by the microcomputer 20 with a temperature rise curve or the like.

  When lowering the temperature of the contents 35 of the heating appliance as the electric appliance main body 30, as shown in FIG. 2, the user puts his hand on the heating appliance as the electric appliance main body 30 and turns L1, L2, L3,. When it rotates, for example, a signal is output to the microcomputer 20 to decrease the temperature of the contents 35 by 5 ° C. per 15 degrees of the central angle, and the power supply circuit 19 is opened to stop the power supply to the heating wire 18a. Then, the power supply circuit 19 is opened until the detected value of the temperature sensor 22 matches the set value of the gyro sensor 21. Since it takes time to lower the temperature of the contents 35, it is desirable that the comparison between the set value of the gyro sensor 21 and the detection value of the temperature sensor 22 by the microcomputer 20 be determined by a temperature lowering curve or the like.

FIG. 4 shows an example of a lighting device as the electric device main body 30.
When the lighting equipment as the electric appliance body 30 is placed on the power supply base 27, the power supply circuit 19 is closed by a command from the microcomputer 20, and the lighting equipment is moved to the power supply base 27 by the data stored in the nonvolatile memory 23 of the microcomputer 20. It is reset to the state immediately before it was removed from the lamp and lights up. At this time, it is assumed that the power supply circuit 19 is turned on / off by the pulse having the duty ratio d2 / d0 in FIG. 5B to supply power to the light emitting element 18b such as an LED.
To further increase the brightness of the lighting equipment as the electric equipment main body 30, as shown in FIG. 2, the user puts his hand on the lighting equipment as the electric equipment main body 30 and turns to the right to the position of R1. I do. Then, the gyro sensor 21 detects the angular velocity of the lighting apparatus as the electric apparatus main body 30, and outputs a signal to the microcomputer 20, for example, such that the duty ratio d3 / d0 pulse of FIG. Then, the microcomputer 20 increases the ON time of the power supply circuit 19 to supply a large amount of power to the light emitting element 18b such as an LED to increase the brightness. Further, when the lighting apparatus as the electric apparatus body 30 is rotated clockwise with R2, R3,..., The microcomputer 20 outputs a signal to the microcomputer 20 to increase the brightness by a predetermined brightness at a central angle of 15 degrees, for example.

  When lowering the brightness of the light emitting element 18b such as an LED of the lighting equipment, as shown in FIG. 2, the user hands on the lighting equipment as the electric equipment main body 30 and turns counterclockwise to L1, L2, L3,. For example, a signal for decreasing the brightness by a predetermined value at a central angle of 15 degrees is sent from the gyro sensor 21 to the microcomputer 20, and the microcomputer 20 sends the duty ratio d1 / d0 to the power supply circuit 19 as shown in FIG. Is controlled so that the power supply is reduced by outputting a signal in a direction in which the light-emitting element 18b becomes smaller and the light-emitting element 18b such as an LED becomes darker.

In the second embodiment, only the brightness is changed, but an example in which the hue is also changed will be described as a third embodiment.
6, the receiving coil 14, the resonance capacitor 15, the rectifier circuit 16, and the smoothing capacitor 17 are the same as those in FIGS. Further, although the stabilizing circuit 24 and the capacitor 37 are added in FIG. 6, they can be added in FIGS. 1 and 4.
6 is that the light emitting element 18b such as an LED has three primary colors of light of a red light emitting element 18R (Red / red), a green light emitting element 18G (Green / green), and a blue light emitting element 18B (Blue / blue). LED element that emits light. When a signal is wirelessly transmitted from the wireless communication module 25, the combination is selected and received by the wireless communication electric circuit 36, and a target hue is obtained by a command from the microcomputer 20. The desired brightness is obtained by the rotation angle of the gyro sensor 21.

For example, to reproduce white with the highest brightness, the red light emitting element 18R, the green light emitting element 18G, and the blue light emitting element 18B are selected by the wireless communication module 25, and the power supply circuit 19R for red and the green The power supply circuit 19G and the blue power supply circuit 19B may be selected, and the duty ratios may all be set to 100%.
When it is desired to change the hue to yellow and reduce the luminance by half, the wireless communication module 25 selects the red light emitting element 18R, the green light emitting element 18G, and the blue light emitting element 18B, and the gyro sensor 21 controls the power for red. The duty ratio of the supply circuit 19R is set to 100%, the duty ratio of the green power supply circuit 19G is set to 100%, and the duty ratio of the blue power supply circuit 19B is set to 0%.
Similarly, to set the target hue, the wireless communication module 25 selects the combination of the red light emitting element 18R, the green light emitting element 18G, and the blue light emitting element 18B, and the red power supply circuit 19R by the gyro sensor 21, By setting the combination of the duty ratios of the green power supply circuit 19G and the blue power supply circuit 19B, it is possible to set infinite combinations of hues and lightness.

In the first, second, and third embodiments, when the electric appliance body 30 as a heating appliance or a lighting appliance is rotated by a predetermined angle, the angle is detected by the gyro sensor 21 and controlled to a predetermined temperature or brightness. However, the present invention is not limited to this. When the electric appliance body 30 is intermittently rotated, the number of times is detected by the gyro sensor 21 and the temperature or the brightness is controlled to a predetermined value according to the number of times. Good.
Further, the present invention is not limited to the case where the electric appliance main body 30 rotates while being in contact with the power supply stand 27, and may be one that slightly floats and pivots. In other words, any surface may be used as long as the power supply coil 13 of the power supply stand 27 and the power reception coil 13 of the electric appliance body 30 rotate while facing each other.

  DESCRIPTION OF SYMBOLS 10 ... AC power supply, 11 ... Rectifier circuit, 12 ... Inverter circuit, 13 ... Power supply coil, 14 ... Power receiving coil, 15 ... Resonant capacitor, 16 ... Rectifier circuit, 17 ... Smoothing capacitor, 18 ... Load, 19 ... Power supply Circuit, 20: microcomputer, 21: gyro sensor, 22: temperature sensor, 23: nonvolatile memory, 24: stabilizing circuit, 25: wireless communication module, 26: table, 27: power supply stand, 28: AC plug, 29 ... Wiring board, 30: electric appliance body, 31: exterior material, 32: interior material, 33: rubber material, 34: wiring board, 35: contents, 36: electric circuit for wireless communication, 37: capacitor, 38: protection resistor 3.

Claims (5)

In a non-contact power supply-type electric appliance including a power supply stand having a built-in power supply coil and an electric appliance main body having a built-in power reception coil for receiving contactless power from the power supply coil,
The electric appliance main body is rotatably provided in a state where the power supply coil and the power receiving coil face each other, and supplies the electric appliance main body with a load driven by the electric power received by the electric power receiving coil, and supplies the electric power to the load. A power supply circuit, a gyro sensor that is provided at a substantially rotation center position of the electric appliance body, and outputs a rotation angle and a rotation direction of the electric appliance body. A non-contact power supply type electric appliance comprising a microcomputer for controlling power supply.   2. The non-contact power supply type electric appliance according to claim 1, wherein the electric appliance main body is formed of a heating container, and a heating wire as the load is built in the heating container.   A temperature sensor is provided in the heating vessel, and a microcomputer that compares the output of the temperature sensor with the output of the gyro sensor and controls the power supply of the power supply circuit with the comparison output is provided. The non-contact power supply type electric appliance according to claim 2.   The non-contact power supply type electric appliance according to claim 1, wherein the electric appliance main body is made of a lighting appliance, and a light emitting element made of an LED as the load is built in the lighting appliance.   The light-emitting element includes a red light-emitting element, a green light-emitting element, and a blue light-emitting element connected in parallel with each other, and a red power supply circuit, a green power supply circuit, and a blue power supply circuit connected in series to the red light-emitting element, the green light-emitting element, and the blue power supply circuit. A wireless communication module wirelessly connected to a wireless communication electric circuit in the lighting apparatus for instructing selection of a combination of the red light emitting element, the green light emitting element, and the blue light emitting element; the red power supply circuit and the green power supply 5. The non-contact power supply type electric appliance according to claim 4, further comprising a gyro sensor for setting a duty ratio of the circuit and a power supply circuit for blue.

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